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Fiber Bragg gratings with enhanced thermal stability
Gilberto Brambilla and Harvey Rutt
Gratings written in tin-doped silica fibers by using a 248 nm excimer laser exhibit extremely high thermal stability. Isothermal measurements up to 1100 K demonstrate significant advantages over conventional fiber gratings. Extrapolations from experimental data indicated that gratings operating at 500 K for ten years will retain more than 99% of the initial strength.
Applied Physics Letters (2002) Vol.80(18) pp.3259-3261
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